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Re: [HACKERS] fsync vs open_sync

From: "Merlin Moncure" <merlin(dot)moncure(at)rcsonline(dot)com>
To: <pgsql(at)mohawksoft(dot)com>
Cc: <pgsql-performance(at)postgresql(dot)org>
Subject: Re: [HACKERS] fsync vs open_sync
Date: 2004-08-10 15:25:15
Message-ID: 6EE64EF3AB31D5448D0007DD34EEB3412A7446@Herge.rcsinc.local (view raw or flat)
Thread:
Lists: pgsql-performance
> Anyway, with fsync enabled using standard fsync(), I get roughly
300-400
> inserts per second. With fsync disabled, I get about 7000 inserts per
> second. When I re-enable fsync but use the open_sync option, I can get
> about 2500 inserts per second.

You are getting 300-400 inserts/sec with fsync on?  If you don't mind me
asking, what's your hardware?  (also, have you checked fsync on #s with
the new bgwriter in 7.5?)

Merlin



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Subject: Re: [HACKERS] fsync vs open_sync
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